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Add dry runs. #7

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pinktrink merged 4 commits from master into master 2022-02-17 02:38:08 +00:00
Conversation 4 Commits 4 Files changed 1 +40 -22
1 changed files with 40 additions and 22 deletions
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62
flake.nix
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@ -11,48 +11,66 @@
forAllSystems = nixpkgs.lib.genAttrs supportedSystems; forAllSystems = nixpkgs.lib.genAttrs supportedSystems;
nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; overlays = [ self.overlay ]; }); nixpkgsFor = forAllSystems (system: import nixpkgs { inherit system; overlays = [ self.overlay ]; });
in rec in rec
{ {
overlay = final: prev: { overlay = final: prev: {
generateApps = flake: generateApps = flake:
let let
machines = builtins.attrNames flake.nixosConfigurations; machines = builtins.attrNames flake.nixosConfigurations;
validMachines = final.lib.remove "" (final.lib.forEach machines (x: final.lib.optionalString (flake.nixosConfigurations."${x}"._module.args ? nixinate) "${x}" )); validMachines = final.lib.remove "" (final.lib.forEach machines (x: final.lib.optionalString (flake.nixosConfigurations."${x}"._module.args ? nixinate) "${x}" ));
mkDeployScript = machine: final.writeScript "deploy-${machine}.sh" '' mkDeployScript = { machine, dryRun }: let
set -e inherit (builtins) abort;
SSH_USER=${flake.nixosConfigurations.${machine}._module.args.nixinate.sshUser}
SSH_HOST=${flake.nixosConfigurations.${machine}._module.args.nixinate.host} n = flake.nixosConfigurations.${machine}._module.args.nixinate;
BUILD_ON=${flake.nixosConfigurations.${machine}._module.args.nixinate.buildOn} user = n.sshUser or "root";
echo "🚀 Deploying nixosConfigurations.${machine} from ${flake}" host = n.host;
echo "👤 SSH User: $SSH_USER" where = n.buildOn or "remote";
echo "🌐 SSH Host: $SSH_HOST" remote = if where == "remote" then true else if where == "local" then false else abort "_module.args.nixinate.buildOn is not set to a valid value of 'local' or 'remote'";
if [ $BUILD_ON = "remote" ]; then switch = if dryRun then "dry-activate" else "switch";
script = ''
set -e
echo "🚀 Deploying nixosConfigurations.${machine} from ${flake}"
echo "👤 SSH User: ${user}"
echo "🌐 SSH Host: ${host}"
'' + (if remote then ''
echo "🚀 Sending flake to ${machine} via rsync:" echo "🚀 Sending flake to ${machine} via rsync:"
( set -x; ${final.rsync}/bin/rsync -q -vz --recursive --zc=zstd ${flake}/* $SSH_USER@$SSH_HOST:/tmp/nixcfg/ ) ( set -x; ${final.rsync}/bin/rsync -q -vz --recursive --zc=zstd ${flake}/* ${user}@${host}:/tmp/nixcfg/ )
echo "🤞 Activating configuration on ${machine} via ssh:" echo "🤞 Activating configuration on ${machine} via ssh:"
( set -x; ${final.openssh}/bin/ssh -t $SSH_USER@$SSH_HOST 'sudo nixos-rebuild switch --flake /tmp/nixcfg#${machine}' ) ( set -x; ${final.openssh}/bin/ssh -t ${user}@${host} 'sudo nixos-rebuild ${switch} --flake /tmp/nixcfg#${machine}' )
elif [ $BUILD_ON = "local" ]; then '' else ''
echo "🔨 Building system closure locally, copying it to remote store and activating it:" echo "🔨 Building system closure locally, copying it to remote store and activating it:"
( set -x; NIX_SSHOPTS="-t" ${final.nixos-rebuild}/bin/nixos-rebuild switch --flake ${flake}#${machine} --target-host $SSH_USER@$SSH_HOST --use-remote-sudo ) ( set -x; NIX_SSHOPTS="-t" ${final.nixos-rebuild}/bin/nixos-rebuild ${switch} --flake ${flake}#${machine} --target-host ${user}@${host} --use-remote-sudo )
else '');
echo "_module.args.nixinate.buildOn is not set to a valid value of 'local' or 'remote'" in final.writeScript "deploy-${machine}.sh" script;
fi
'';
in in
{ {
nixinate = nixinate =
( (
nixpkgs.lib.genAttrs nixpkgs.lib.genAttrs
validMachines validMachines
(x: (x:
{ {
type = "app"; type = "app";
program = toString (mkDeployScript x); program = toString (mkDeployScript {
machine = x;
dryRun = false;
});
} }
) )
// nixpkgs.lib.genAttrs
(map (a: a + "-dry-run") validMachines)
(x:
{
type = "app";
program = toString (mkDeployScript {
machine = x;
dryRun = true;
});
}
)
); );
}; };
}; };
nixinate = forAllSystems (system: nixpkgsFor.${system}.generateApps); nixinate = forAllSystems (system: nixpkgsFor.${system}.generateApps);
apps = nixinate.x86_64-linux examples; apps = nixinate.x86_64-linux examples;
}; };
} }